公开(公告)号：US07352834B2

公开(公告)日：2008-04-01

申请号：US10661376

申请日：2003-09-12

Applicant: Timo Hakasalo ,  Risto Paatelma

Inventor： Timo Hakasalo ,  Risto Paatelma

IPC: H04L7/00

CPC classification number: H04B1/70756 ,  H04B2201/70701 ,  H04B2201/70709

Abstract: The invention relates to a method for synchronizing the phase of a code available at a receiving unit with the phase of a corresponding code of which samples are received at said receiving unit. The synchronization comprises comparing a received code sample with different samples of the available code, the respective sample of the available code being shifted in phase for each comparison by a predetermined amount until a correspondence with the received code sample is determined or until an interrupt of the synchronization occurs. In order to accelerate the synchronization, it is proposed to continue the synchronization after an interrupt with a newly received code sample and with available code samples proceeding from the code phase of the available code reached in the synchronization before the interrupt. The invention relates equally to a corresponding receiving unit and to a communication system comprising such a receiving unit.

Abstract translation: 本发明涉及一种用于使在接收单元处可用的代码的相位与在所述接收单元处接收到采样的相应代码的相位同步的方法。 同步包括将接收到的代码样本与可用代码的不同样本进行比较，可用代码的相应样本在每个比较期间被相位移位预定量，直到与接收到的代码样本的对应被确定或直到中断 同步发生。 为了加速同步，建议在新接收到的代码样本的中断之后继续同步，并且可以从中断之前的同步中达到的可用代码的代码阶段继续执行可用的代码示例。 本发明同样涉及相应的接收单元和涉及包括这种接收单元的通信系统。

公开(公告)号：US20070237118A1

公开(公告)日：2007-10-11

申请号：US11729012

申请日：2007-03-28

Applicant: Jong-Won Seo

Inventor： Jong-Won Seo

IPC: H04B7/216

CPC classification number: H04B7/2668 ,  H04B2201/70709 ,  H04W24/00 ,  H04W48/16 ,  H04W56/00 ,  H04W72/00

Abstract: Provided is a method and apparatus for acquiring time information from a CDMA system in a mobile communication terminal. The method includes: searching for a CDMA channel in a predetermined manner when a CDMA modem or module is activated; receiving a sync channel signal via the searched CDMA channel and extracting time information from the sync channel signal; and setting a time of the mobile communication terminal using the extracted time information. Therefore, even when the mobile communication terminal communicates with a system that does not provide time information, the mobile communication terminal can precisely maintain its time by acquiring time information from a CDMA system.

Abstract translation: 提供了一种用于从移动通信终端中的CDMA系统获取时间信息的方法和装置。 该方法包括：当CDMA调制解调器或模块被激活时，以预定方式搜索CDMA信道; 经由所搜索的CDMA信道接收同步信道信号，并从同步信道信号中提取时间信息; 以及使用提取的时间信息设置移动通信终端的时间。 因此，即使当移动通信终端与不提供时间信息的系统通信时，移动通信终端也可以通过从CDMA系统获取时间信息来精确地保持其时间。

公开(公告)号：US20070206524A1

公开(公告)日：2007-09-06

申请号：US11706566

申请日：2007-02-15

Applicant: Won-Kyu Suk

Inventor： Won-Kyu Suk

IPC: H04B7/216

CPC classification number: H04B1/70754 ,  H04B1/70756 ,  H04B2201/70709

Abstract: Disclosed is an apparatus and a method for acquiring paging indicator information in a Wideband Code Division Multiple Access (WCDMA) system. The method includes: storing, in a memory unit, data of paging indicator channels received in a normal mode, and transitioning to a sleep mode; transitioning from the sleep mode to a catnap mode where a normal speed clock is used; and detecting a paging indicator by using information on the starting position of a frame, information indicating the starting position of the paging indicator, and information on a section length of the paging indicator that are acquired in the catnap mode.

Abstract translation: 公开了一种用于在宽带码分多址（WCDMA）系统中获取寻呼指示符信息的装置和方法。 该方法包括：在存储器单元中存储以正常模式接收的寻呼指示符信道的数据，并转换到睡眠模式; 从睡眠模式转换到使用正常速度时钟的catnap模式; 以及通过使用关于帧的开始位置的信息，指示寻呼指示符的开始位置的信息以及关于在catnap模式中获取的寻呼指示符的段长度的信息来检测寻呼指示符。

公开(公告)号：US20070147309A1

公开(公告)日：2007-06-28

申请号：US10596854

申请日：2003-12-30

Applicant: Frank Brouwer

Inventor： Frank Brouwer

IPC: H04B7/216

CPC classification number: H04J13/20 ,  H04B2201/70709 ,  H04J13/0044

Abstract: Downlink channels within an implementation of a Code Division Multiple Access (CDMA) system, e.g. a Wideband CDMA system, are allocated to channelisation codes in a primary or secondary code tree, each tree having its own scrambling code. During Compressed Mode (CPM), channels which need reallocation during CPM are reallocated to one of the alternative code trees related to the primary or secondary code trees, depending on their original channelisation code in the primary or secondary code tree. According to the invention a method and a system are presented where a channel, which needs to be allocated a channelisation code, is determined on its type of CPM method to be deployed, where a channelisation code is selected according to a code-allocation strategy where there is a channelisation code selected from a list with candidate channelisation with distinction between channelisation codes for channels which do need reallocation during CPM and channelisation codes for channels that do not need reallocation during CPM.

Abstract translation: 码分多址（CDMA）系统的实现中的下行链路信道，例如 宽带CDMA系统被分配给主码或次码树中的信道化码，每个树具有其自己的扰码。 在压缩模式（CPM）期间，在CPM期间需要重新分配的信道根据它们在主代码树或辅助代码树中的原始信道化代码被重新分配到与主代码树或次代码树相关的替代代码树之一。 根据本发明，提出了一种方法和系统，其中需要分配信道化代码的信道是根据要部署的CPM方法的类型来确定的，其中根据码分配策略来选择信道化码， 存在从具有候选信道化的列表中选择的信道化码，区分用于在CPM期间需要重新分配的信道的信道化码，以及在CPM期间不需要重新分配的信道的信道化码。

公开(公告)号：US07170923B2

公开(公告)日：2007-01-30

申请号：US10338714

申请日：2003-01-09

Applicant: Soo-Bok Yeo ,  Sang-Min Bae ,  Ji-Won Ha ,  Jong-Han Kim

Inventor： Soo-Bok Yeo ,  Sang-Min Bae ,  Ji-Won Ha ,  Jong-Han Kim

IPC: H04B1/69 ,  H04B7/00 ,  H04B7/216

CPC classification number: H04L1/20 ,  H04B1/70755 ,  H04B2201/70709 ,  H04L1/201

Abstract: An apparatus for detecting a frame transmission period in a CDMA mobile communication system supporting a discontinuous transmission mode. A first frame detector performs primary frame detection by calculating a signal-to-interference ratio (SIR) using traffic symbol energy, pilot symbol energy and noise energy measured for a predetermined time period, and comparing the SIR with a predetermined frame detection threshold value. A decoder calculates a symbol error rate (SER) by decoding symbols received for the predetermined time period. A second frame detector selects an SER threshold value according to frame detection information from the first frame detector, and compares the selected SER threshold value with the SER to determine whether a frame has been transmitted.

Abstract translation: 一种在支持不连续传输模式的CDMA移动通信系统中检测帧传输周期的装置。 第一帧检测器通过使用在预定时间段内测量的业务符号能量，导频符号能量和噪声能量，并将SIR与预定帧检测阈值进行比较来计算信号干扰比（SIR）来执行主帧检测。 解码器通过解码在预定时间段内接收到的符号来计算符号错误率（SER）。 第二帧检测器根据来自第一帧检测器的帧检测信息选择SER阈值，并将所选择的SER阈值与SER进行比较，以确定帧是否已被发送。

公开(公告)号：US20070004469A1

公开(公告)日：2007-01-04

申请号：US11469302

申请日：2006-08-31

Applicant: Kazuhiro Arimitsu

Inventor： Kazuhiro Arimitsu

IPC: H04B1/38

CPC classification number: H04W52/029 ,  H04B2201/70709 ,  H04W52/0261 ,  Y02D70/1262 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/24

Abstract: In a CDMA mobile terminal, the power supply voltage of the mobile terminal is compared with a first threshold voltage, and frequency monitor is performed at a normal rate if the power supply voltage is higher than the first threshold voltage, and frequency monitor is performed at 1/N of the normal rate if the power supply voltage is lower than the first threshold voltage, where N is equal to or greater than 2. Additionally, the power level of an RF signal received by the mobile terminal is compared with a first reference level, and frequency monitor is performed at the normal rate if the power level of the RF signal is lower than the first reference level, and frequency monitor is performed at 1/N of the normal rate if the power level of the RF signal is higher than the first reference level.

Abstract translation: 在CDMA移动终端中，将移动终端的电源电压与第一阈值电压进行比较，并且如果电源电压高于第一阈值电压，则以正常速率执行频率监视，并且在 如果电源电压低于第一阈值电压，其中N等于或大于2，则为正常速率的1 / N。此外，将移动终端接收的RF信号的功率电平与第一参考 如果RF信号的功率电平低于第一参考电平，则以正常速率执行电平和频率监视，并且如果RF信号的功率电平较高，则以正常速率的1 / N执行频率监视 比第一个参考水平。

公开(公告)号：US07050839B2

公开(公告)日：2006-05-23

申请号：US10386422

申请日：2003-03-13

Applicant: Masami Morimoto

Inventor： Masami Morimoto

IPC: H04B1/707

CPC classification number: H04B1/70756 ,  H04B2201/70709 ,  H04L2027/0028 ,  H04L2027/0055 ,  H04W24/04 ,  Y02D70/40

Abstract: A cell search is continuously performed with respect to an active base station and peripheral base station which are objects, when a path from the active base station cannot be detected as a result of path search in a wake-up period in a standby state. Subsequently, an error of a reception frequency is detected based on the path detected by the cell search, and the reception frequency of a receiver is corrected so as to decrease the detected frequency error.

Abstract translation: 当处于待机状态的唤醒期间作为路径搜索的结果，当来自活动基站的路径不能被检测到时，相对于作为对象的活动基站和外围基站连续执行小区搜索。 随后，基于由小区搜索检测到的路径来检测接收频率的误差，校正接收机的接收频率，以便减小检测到的频率误差。

公开(公告)号：US06934271B2

公开(公告)日：2005-08-23

申请号：US09775969

申请日：2001-02-02

Applicant: Ariela Zeira ,  Eldad Zeira ,  Alexander Reznik ,  Stephen E. Terry

Inventor： Ariela Zeira ,  Eldad Zeira ,  Alexander Reznik ,  Stephen E. Terry

IPC: H04B1/707 ,  H04B1/7073 ,  H04B1/7093 ,  H04B1/7103 ,  H04B1/7105 ,  H04B7/00 ,  H04J3/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/16 ,  H04Q7/38 ,  H04Q7/00

CPC classification number: H04B1/7103 ,  H04B1/707 ,  H04B1/70735 ,  H04B1/7105 ,  H04B2001/70935 ,  H04B2201/70701 ,  H04B2201/70709 ,  H04J13/00 ,  H04J13/16

Abstract: A wireless time division duplex communication system using code division multiple access has a base station and user equipments. The system communicates using communication bursts. Each communication burst has a unique channelization code and a midamble code. Each midamble code is mapped to a set of at least one channelization code. For each communication burst to be transmitted in a time slot from the base station, the midamble code mapped to that burst's channelization code is determined. Communication bursts are generated and transmitted in the time slot. Each burst has the determined midamble code for its channelization code. The user equipment receives the bursts and determines each received midamble code. The user equipment determines the channelization codes of the transmitted communication bursts based on in part a result of the determining of each received midamble code.

Abstract translation: 使用码分多址的无线时分双工通信系统具有基站和用户设备。 系统使用通信突发进行通信。 每个通信突发具有唯一的信道化码和中间码。 每个中间码代码被映射到一组至少一个信道化码。 对于要在基站的时隙中发送的每个通信突发，确定映射到该突发的信道化码的中间码。 在时隙中生成和发送通信突发。 每个突发具有确定的其信道化码的中间码码。 用户设备接收突发并确定每个接收到的中间码。 用户设备部分地基于确定每个接收到的中间码的结果来确定所发送的通信脉冲串的信道化码。

公开(公告)号：US20040247058A1

公开(公告)日：2004-12-09

申请号：US10455234

申请日：2003-06-05

Applicant: Global Locate, Inc.

Inventor： Charles Abraham

IPC: H04L001/00

CPC classification number: H04B7/1851 ,  G01S19/21 ,  H04B1/3805 ,  H04B2201/70709 ,  H04B2201/709709

Abstract: A method and apparatus for mitigating interference in a satellite signal receiver is described. The satellite signal receiver receives satellite signals from a plurality of satellites. In one example, data transmission of a wireless transceiver operating in proximity to the satellite signal receiver is monitored. A control signal is transmitted to the satellite signal receiver upon occurrence of data transmission from the wireless transceiver. Signal integration within the satellite signal receiver is then gated is response to the control signal. In another example, one or more values of satellite signal samples are selected from a plurality of possible values. A percentage of satellite signal samples having the one or more selected values is monitored over a predefined period. Signal integration within the satellite signal receiver is gated in response to the percentage exceeding a predefined threshold. In yet another example, a gain setting of an automatic gain control circuit within the satellite signal receiver is adjusted in response to detection of interference.

Abstract translation: 描述了用于减轻卫星信号接收机中的干扰的方法和装置。 卫星信号接收机从多个卫星接收卫星信号。 在一个示例中，监视在卫星信号接收机附近操作的无线收发器的数据传输。 当从无线收发器发送数据传输时，控制信号被发送到卫星信号接收机。 然后，卫星信号接收机内的信号积分是对控制信号的响应。 在另一示例中，从多个可能值中选择卫星信号样本的一个或多个值。 在预定义的时间段内监视具有一个或多个所选值的卫星信号样本的百分比。 响应于超过预定阈值的百分比来选通卫星信号接收机内的信号整合。 在另一示例中，响应于干扰的检测来调整卫星信号接收机内的自动增益控制电路的增益设置。

公开(公告)号：US20040208147A1

公开(公告)日：2004-10-21

申请号：US10761130

申请日：2004-01-20

Applicant: Tantivy Communications, Inc.

Inventor： James A. Proctor JR.

IPC: H04B007/216

CPC classification number: H04B7/2628 ,  H04B1/7075 ,  H04B1/70754 ,  H04B2001/70706 ,  H04B2201/70703 ,  H04B2201/70709 ,  H04B2201/70715 ,  H04J13/0022 ,  H04J13/004 ,  H04J13/16 ,  H04J13/18 ,  H04L1/0007 ,  H04L1/165 ,  H04L1/1809 ,  H04L7/06 ,  H04L25/14 ,  H04L27/2601 ,  H04Q11/0428 ,  H04Q2213/13098 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/1327 ,  H04Q2213/13298 ,  H04Q2213/13332 ,  H04Q2213/1336 ,  H04Q2213/13389 ,  H04W24/00 ,  H04W28/20 ,  H04W28/22 ,  H04W56/00 ,  H04W56/0045 ,  H04W56/0075 ,  H04W72/0413 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/0466 ,  H04W74/00 ,  H04W74/04 ,  H04W76/28 ,  H04W84/14

Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels. Preferably, the code phases of the new channels are assigned according to a predetermined code phase relationship with respect to the code phase of the corresponding maintenance sub channel.

Abstract translation: 一种用于CDMA无线通信的服务选项覆盖，其中通过向每个子信道分配给定长伪噪声（PN）码的不同码相位，在反向链路上定义多个可分配子信道。 然后通过根据需要基于每个网络层连接动态分配一个，一个或多个子信道来满足每个在线订户单元的瞬时带宽需求。 系统有效地在用户单元和反向链路上的基站之间提供相对大量的虚拟物理连接，用于延长的空闲周期，例如当连接到订户单元的计算机被接通而不是当前主动发送或接收数据时。 这些维护子信道允许基站和用户单元保持同步和时间同步。 这又允许通过分配新的码相子信道来快速获取附加的子信道。 优选地，相对于对应的维护子信道的码相位，根据预定的码相位关系来分配新信道的码相位。